phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry 'b21f0772a9c70bf403d1e1c39ac98d38' for key 'phpbb_sessions.PRIMARY'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('b21f0772a9c70bf403d1e1c39ac98d38', -1, 1715354755, 1715354755, '12762da2', 9, 0, 0)

Line : 187
File : sessions.php